Underground mining roof supporting device

Abstract

The utility model discloses a roof supporting device for underground mining, and relates to the technical field of lead-zinc ore mining. The device comprises supporting plates, supporting assemblies are arranged above the supporting plates, cross beams are welded between the adjacent supporting plates, and detection assemblies are further arranged at the bottoms of the cross beams. The supporting assembly comprises mounting frames fixedly connected to the front end and the rear end of the upper surface of the supporting plate correspondingly, the tops of the front-back adjacent mounting frames are fixedly connected with the same mounting plate, and an elastic woven mesh is fixedly connected between the left-right adjacent mounting plates. According to the utility model, the acting force of rockfall on the supporting plate is preliminarily relieved through the elastic woven mesh, and the external force borne by the supporting plate is secondarily counteracted through the buffer spring in the mounting frame, so that the problem that the existing supporting plate is easy to damage due to the reasons such as the rockfall is solved; meanwhile, air in the mine tunnel is guided into the detection box through the gas collecting hood and the telescopic hose, the air in the mine tunnel is detected through the detection box, and the problem that an existing mine tunnel is single in function is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead and zinc ore mining, in particular to an underground mining roof supporting device. Background Art

[0002] During the mining process of lead and zinc mines, in order to avoid mine collapse and other phenomena, a roof support device is usually installed in the mine to support and protect the top of the mine.

[0003] The existing document with publication number CN219733426U discloses an underground mining roof support device, comprising a support assembly, wherein reinforcing side plates are fixedly mounted on the upper ends of both sides of the support assembly, a fixed plate is fixedly mounted between the reinforcing side plates, an adjustment assembly is movably connected to the upper end of the fixed plate, and a support assembly for supporting the underground mining roof is hingedly connected to the upper end of the adjustment assembly;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The roof support device described above includes a first support plate, a second support plate, and a third support plate. The first support plate is located between the second and third support plates. The first, second, and third support plates are used to support the mine tunnel of the lead-zinc mine. However, during use, the device lacks a structure to protect the support plates themselves, resulting in the support plates being easily damaged by falling rocks and other materials in the mine tunnel, resulting in a short service life of the structure.

[0006] 2. The roof support device mentioned above has reinforced side panels fixedly installed on both sides of its support assembly, a fixed plate fixedly installed in the middle of the reinforced side plate, an adjustment assembly movably connected to the upper end of the fixed plate, and a support assembly hinged on the upper end of the adjustment assembly. The support assembly is supported by the support assembly, reinforced side panels and fixed plates, the support assembly is adjusted by the adjustment assembly, and the mine tunnel is supported by the support assembly. However, during use, it can only support the mine tunnel and cannot detect the air quality in the mine tunnel. Its functionality is single.

[0007] To this end, we provide an underground mining roof support device to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide an underground mining roof support device, which uses an elastic woven mesh to preliminarily reduce the force of falling rocks on the support plate, and uses a buffer spring in the installation frame to secondary offset the external force on the support plate, thereby solving the problem that the existing support plate is easily damaged by falling rocks and the like. At the same time, the air in the mine tunnel is introduced into the detection box through the air collecting hood and the telescopic hose, and the air in the mine tunnel is detected through the detection box, thereby solving the problem of the existing single functionality.

[0009] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0010] The utility model is an underground mining roof support device, comprising support plates on both sides, support components arranged above the support plates, cross beams welded between adjacent support plates, and a detection component arranged at the bottom of the cross beams;

[0011] The support assembly includes mounting frames respectively fixedly connected to the front and rear ends of the upper surface of the support plate, the tops of the front and rear adjacent mounting frames are fixedly connected to the same mounting plate, an elastic woven mesh is fixedly connected between the left and right adjacent mounting plates, and a sliding rod is fixedly connected to the inside of the mounting frame, a slider is sleeved on the sliding rod, and a buffer spring is sleeved on the outside of the sliding rod, and the buffer springs are respectively located above and below the slider. A U-shaped frame is welded on the outer wall of one side of the slider located on the outside of the mounting frame, and a support plate is clamped between the left and right adjacent U-shaped frames;

[0012] The detection component includes a fixed plate fixedly connected to the bottom of the beam, a detection box is fixedly connected to one side of the lower surface of the fixed plate, an audible and visual alarm is fixedly connected to the front end surface of the detection box, an exhaust fan is fixedly connected to one side of the interior of the detection box, the air inlet end of the exhaust fan is fixedly connected to a telescopic hose, the end of the telescopic hose away from the exhaust fan is fixedly connected to an air collecting hood, a winding roller is rotatably connected to one side of the upper surface of the fixed plate, a lifting rope is wrapped around the outer wall of the winding roller, and the end of the lifting rope away from the winding roller is fixedly connected to the top of the air collecting hood.

[0013] The present invention is further configured as follows: support columns are fixedly connected to the front and rear ends of the lower surface of the support plate, and reinforcing rods are welded between the front and rear adjacent support columns.

[0014] The utility model is further configured as follows: positioning holes are opened at the front and rear ends of the surface of the mounting plate, positioning rods are fitted in the internal gaps of the positioning holes, and the bottom ends of the positioning rods are welded to the top of the mounting frame.

[0015] The utility model is further configured as follows: a connecting rod is fixedly connected between the front and rear adjacent installation frames, both ends of the connecting rod are fixedly connected to reinforcing ribs, and the vertical arms of the reinforcing ribs are fixedly connected to the facing surfaces of the installation frames.

[0016] The utility model is further configured as follows: a movable rod is movably passed through the surface of the beam, the top and bottom ends of the movable rod are respectively welded with a stop plate and a limit plate, the upper surface of the stop plate is fixedly connected to the lower surface of the support plate, the upper surface of the limit plate is fixedly connected to a return spring, and the top end of the return spring is fixedly connected to the bottom of the beam.

[0017] The utility model is further configured as follows: the support plate includes multiple plates and a connecting frame, the upper surfaces of the abutment plates are fixedly connected to the bottom of the connecting frame, the upper surfaces of the plates are welded with first threaded rods, the longitudinal support arms of the connecting frame are provided with through grooves matching the first threaded rods, the first threaded rods pass through the through grooves and are sleeved with first fastening nuts, second threaded rods are welded on the front and rear end surfaces of the plates, the vertical support arms of the connecting frame are provided with through holes matching the second threaded rods, the second threaded rods pass through the through holes and are sleeved with second fastening nuts.

[0018] The utility model is further configured as follows: an air outlet is opened on an outer wall of one side of the detection box, a plurality of baffles are fixedly connected to the inside of the detection box, a plurality of sensor bodies are fixedly connected to the bottom of the detection box, a sensor probe is provided on the top of each sensor body, and the top end of the sensor probe passes through the bottom of the detection box and extends to the inner side of the detection box.

[0019] The utility model is further configured as follows: the front and rear ends of the center position of the upper surface of the fixed plate are fixedly connected to the first mounting seat, the front and rear ends of the winding roller are rotatably connected to the inside of the first mounting seat, the front end of the center position of the upper surface of the fixed plate is fixedly connected to the driving motor through the motor frame, and the output shaft of the driving motor is fixedly connected to the front end of the winding roller.

[0020] The utility model is further configured as follows: the front and rear ends of one side of the upper surface of the fixed plate are fixedly connected to the second mounting seats, and guide rollers are rotatably connected between the second mounting seats.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model sets a support component. When falling rocks occur on the top of the mine tunnel, the falling rocks first fall on the elastic woven net. The elasticity of the elastic woven net itself reduces the falling speed of the falling rocks, thereby preliminarily reducing the impact force of the falling rocks on the support plate. Then, when the falling rocks touch the support plate, the support plate drives the U-shaped frame to move vertically relative to the mounting frame, so that the slider drives the buffer spring to perform elastic deformation, and under the action of the buffer spring, the impact force on the support plate is offset for a second time, thereby realizing protection of the support plate, avoiding damage to the support plate due to falling rocks and the like, and improving the service life of the support plate.

[0023] 2. The utility model sets a detection component, starts the drive motor, and the output shaft of the drive motor drives the winding roller to rotate, and the lifting rope is wound and unwound by the winding roller, so that the lifting rope adjusts the height of the air collecting hood. Then the exhaust fan is started, and the air at different heights in the mine tunnel is drawn into the detection box through the telescopic hose by the exhaust fan, and the air components are detected and analyzed by the sensor probe in the detection box. When the air quality does not meet the standard, the sound and light alarm is activated to remind the staff, thereby improving its safety and enhancing its functionality.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 The figure is a schematic diagram of the overall structure of an underground mining roof support device.

[0027] Figure 2 It is a structural schematic diagram of the support assembly of the utility model.

[0028] Figure 3 This is a structural disassembly diagram of the installation frame of the utility model.

[0029] Figure 4 This is a structural diagram of the mounting plate of the utility model.

[0030] Figure 5 It is a structural schematic diagram of the support plate of the utility model.

[0031] Figure 6 It is a structural schematic diagram of the plate of the utility model.

[0032] Figure 7 This is a structural diagram of the connection frame of the utility model.

[0033] Figure 8 This is a structural diagram of the crossbeam of the present utility model.

[0034] Figure 9 This is a schematic diagram of the structure of the detection component of the utility model.

[0035] Figure 10 This is a front sectional view of the detection box of the present utility model.

[0036] Figure 11 This is a schematic structural diagram of the gas collecting hood of the present utility model.

[0037] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0038] 1-Support plate, 101-Support column, 102-Reinforcement rod, 2-Support assembly, 201-Mounting frame, 201a-Positioning rod, 201b-Connecting rod, 201c-Reinforcement rib, 201d-Sliding rod, 201e-Buffer spring, 202-Mounting plate, 202a-Positioning hole, 203-Elastic braided mesh, 204-U-shaped frame, 204a-Slider, 205-Support plate, 205a-Plate, 205a-1-First threaded rod, 205a-2-First fastening nut, 205a-3-Second threaded rod, 205a-4-Second fastening nut, 205b-Connecting frame, 205b-1-Through Slot, 205b-2-through hole, 3-crossbeam, 301-movable rod, 302-anti-plate, 303-limiting plate, 304-reset spring, 4-detection component, 401-fixed plate, 402-detection box, 402a-air outlet, 402b-baffle, 402c-sensor body, 402d-sensor probe, 403-sound and light alarm, 404-telescopic hose, 404a-exhaust fan, 405-gas collecting hood, 406-winding roller, 406a-first mounting seat, 406b-motor frame, 406c-drive motor, 407-lifting rope, 407a-second mounting seat, 407b-guide roller. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, it is the first embodiment of the utility model, which provides an underground mining roof support device, including support plates 1 located on both sides, support components 2 are arranged above the support plates 1, and cross beams 3 are welded between adjacent support plates 1. The support component 2 includes a mounting frame 201, a mounting plate 202, an elastic woven mesh 203, a U-shaped frame 204 and a support plate 205. The support plate 205 is initially protected by the elastic woven mesh 203, and the support plate 205 is secondarily buffered by the buffer spring 201e in the mounting frame 201, which solves the existing problem of being unable to avoid damage to the support plate 205 due to falling rocks and the like.

[0042] Specifically, the mounting frame 201 is fixedly connected to the front and rear ends of the upper surface of the support plate 1 respectively, the tops of the front and rear adjacent mounting frames 201 are fixedly connected to the same mounting plate 202, and the elastic woven mesh 203 is fixedly connected between the left and right adjacent mounting plates 202. The interior of the mounting frame 201 is fixedly connected to a sliding rod 201d, and a slider 204a is sleeved on the sliding rod 201d. A buffer spring 201e is also sleeved on the outside of the sliding rod 201d. The buffer spring 201e is respectively located above and below the slider 204a. The slider 204a is located on the outer wall of one side of the mounting frame 201 and is welded with a U-shaped frame 204. A support plate 205 is clamped between the left and right adjacent U-shaped frames 204. The mounting frame 201 The setting is used to install structures such as the mounting plate 202, the setting of the slide bar 201d is used to movably install the slider 204a, the setting of the buffer spring 201e is used to reduce the external force applied to the U-shaped frame 204, the setting of the mounting plate 202 is used to install the elastic woven mesh 203, and the elastic woven mesh 203 is woven with elastic material. The elastic woven mesh 203 is used to provide preliminary protection for the support plate 205, the setting of the U-shaped frame 204 is used to install the support plate 205 between the mounting frames 201, the setting of the slider 204a is used to movably install the U-shaped frame 204 on the mounting frame 201, and the setting of the support plate 205 is used to support the top of the mine road of the lead-zinc mine.

[0043] Furthermore, the front and rear ends of the lower surface of the support plate 1 are fixedly connected to support columns 101, and reinforcing rods 102 are welded between the front and rear adjacent support columns 101;

[0044] The mounting plate 202 has positioning holes 202a at both the front and rear ends. The internal clearance of the positioning holes 202a is fitted with positioning rods 201a. The bottom ends of the positioning rods 201a are welded to the top of the mounting frame 201.

[0045] A connecting rod 201b is fixedly connected between the front and rear adjacent mounting frames 201, and both ends of the connecting rod 201b are fixedly connected to a reinforcing rib 201c, and the vertical arms of the reinforcing rib 201c are fixedly connected to the facing surfaces of the mounting frame 201;

[0046] The surface of the crossbeam 3 is movably penetrated by a movable rod 301. The top and bottom ends of the movable rod 301 are respectively welded with a stop plate 302 and a limit plate 303. The upper surface of the stop plate 302 is fixedly connected to the lower surface of the support plate 205. The upper surface of the limit plate 303 is fixedly connected to a return spring 304. The top end of the return spring 304 is fixedly connected to the bottom of the crossbeam 3.

[0047] The support plate 205 includes multiple plates 205a and a connecting frame 205b. The upper surfaces of the abutment plates 302 are fixedly connected to the bottom of the connecting frame 205b. The upper surfaces of the plates 205a are welded with first threaded rods 205a-1. The longitudinal arms of the connecting frame 205b are provided with through grooves 205b-1 that match the first threaded rods 205a-1. The first threaded rods 205a-1 pass through the through grooves 205b-1 and are sleeved with first fastening nuts 205a-2. Second threaded rods 205a-3 are welded on the front and rear end surfaces of the plates 205a. The vertical arms of the connecting frame 205b are provided with through holes 205b-2 that match the second threaded rods 205a-3. The second threaded rods 205a-3 pass through the through holes 205b-2 and are sleeved with second fastening nuts 205a-4.

[0048] The operating process of this embodiment is as follows: when falling rocks occur at the top of the mine tunnel, the falling rocks first fall onto the elastic woven mesh 203, and the elasticity of the elastic woven mesh 203 itself reduces the falling speed of the falling rocks, thereby preliminarily reducing the impact force of the falling rocks on the support plate 205. Then, when the falling rocks contact the support plate 205, the support plate 205 drives the U-shaped frame 204 to move vertically relative to the mounting frame 201, so that the slider 204a drives the buffer spring 201e to elastically deform, and under the action of the buffer spring 201e, the impact force on the support plate 205 is offset for a second time, thereby protecting the support plate 205.

[0049] Example 2

[0050] See also Figure 1 、 Figure 9 、 Figure 10 and Figure 11 As shown, it is the second embodiment of the present invention, which is based on the previous embodiment, but is different from the previous embodiment in that: a detection component 4 is also provided at the bottom of the beam 3, and the detection component 4 includes a fixed plate 401, a detection box 402, a telescopic hose 404, an air collecting hood 405, a winding roller 406 and a lifting rope 407. The air collecting hood 405 is driven to rise and fall by the lifting rope 407, and the air in the mine tunnel is introduced into the detection box 402 for detection through the air collecting hood 405 and the telescopic hose 404, which solves the existing problem of inconvenience in sampling and detecting the air at different heights in the mine tunnel.

[0051] Specifically, the fixing plate 401 is fixedly connected to the bottom of the crossbeam 3, and a detection box 402 is fixedly connected to one side of the lower surface of the fixing plate 401, and a sound and light alarm 403 is fixedly connected to the front end surface of the detection box 402. An exhaust fan 404a is fixedly connected to one side of the interior of the detection box 402, and the air inlet end of the exhaust fan 404a is fixedly connected to a telescopic hose 404, and the end of the telescopic hose 404 away from the exhaust fan 404a is fixedly connected to an air collecting hood 405, and a winding roller 406 is rotatably connected to one side of the upper surface of the fixing plate 401, and a lifting rope 407 is wound around the outer wall of the winding roller 406, and the end of the lifting rope 407 away from the winding roller 406 is fixedly connected At the top of the gas collecting hood 405, the fixing plate 401 is used to install the detection box 402 and other structures on the crossbeam 3, the detection box 402 is used to detect the air quality in the mine tunnel, the sound and light alarm 403 is used to remind the staff when the air quality in the mine tunnel is low, the telescopic hose 404 and the gas collecting hood 405 are used to introduce air into the detection box 402, the exhaust fan 404a is used to draw air into the detection box 402, the winding roller 406 is used to wind and unwind the lifting rope 407, and the lifting rope 407 is used to install the gas collecting hood 405 and adjust the height of the gas collecting hood 405.

[0052] Furthermore, an air outlet 402a is provided on one outer wall of the detection box 402. A plurality of baffles 402b are fixedly connected to the interior of the detection box 402. A plurality of sensor bodies 402c are fixedly connected to the bottom of the detection box 402. The sensor bodies 402c can be gas, carbon dioxide, carbon monoxide, or other sensors. A sensor probe 402d is provided on the top of each sensor body 402c. The top of the sensor probe 402d passes through the bottom of the detection box 402 and extends to the inside of the detection box 402.

[0053] The front and rear ends of the center position of the upper surface of the fixed plate 401 are fixedly connected to the first mounting seat 406a, and the front and rear ends of the winding roller 406 are rotatably connected to the inside of the first mounting seat 406a. The front end of the center position of the upper surface of the fixed plate 401 is fixedly connected to the drive motor 406c through the motor frame 406b, and the output shaft of the drive motor 406c is fixedly connected to the front end of the winding roller 406;

[0054] The front and rear ends of one side of the upper surface of the fixed plate 401 are fixedly connected to the second mounting seats 407a, and the guide rollers 407b are rotatably connected between the second mounting seats 407a.

[0055] The rest of the structure is the same as that of Example 1.

[0056] The operating process of this embodiment is: start the drive motor 406c, the output shaft of the drive motor 406c drives the winding roller 406 to rotate, and the lifting rope 407 is wound and unwound by the winding roller 406, so that the lifting rope 407 adjusts the height of the air collecting hood 405, and then start the exhaust fan 404a, and the air at different heights in the mine tunnel is drawn into the detection box 402 through the telescopic hose 404 by the exhaust fan 404a, and the air components are detected and analyzed by the sensor probe 402d in the detection box 402, and when the air quality does not meet the standard, the sound and light alarm 403 is started, and the sound and light alarm 403 is used to remind the staff, thereby improving their safety.

[0057] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0058] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An underground mining roof support device, comprising support plates (1) located on both sides, characterized in that: A support assembly (2) is provided above the support plate (1), and a crossbeam (3) is welded between adjacent support plates (1), and a detection assembly (4) is further provided at the bottom of the crossbeam (3); The support assembly (2) comprises a mounting frame (201) fixedly connected to the front and rear ends of the upper surface of the support plate (1), and the tops of the front and rear adjacent mounting frames (201) are fixedly connected to the same mounting plate (202), an elastic braided mesh (203) is fixedly connected between the left and right adjacent mounting plates (202), and a sliding rod (201d) is fixedly connected inside the mounting frame (201), a slider (204a) is sleeved on the sliding rod (201d), and a buffer spring (201e) is sleeved on the outside of the sliding rod (201d), and the buffer spring (201e) is respectively located above and below the slider (204a), and a U-shaped frame (204) is welded on the outer wall of one side of the slider (204a) located outside the mounting frame (201), and a support plate (205) is clamped between the left and right adjacent U-shaped frames (204); The detection assembly (4) comprises a fixed plate (401) fixedly connected to the bottom of the crossbeam (3), and a detection box (402) is fixedly connected to one side of the lower surface of the fixed plate (401), an audible and visual alarm (403) is fixedly connected to the front end surface of the detection box (402), and an exhaust fan (404a) is fixedly connected to one side of the interior of the detection box (402), an air inlet end of the exhaust fan (404a) is fixedly connected to a telescopic hose (404), and an end of the telescopic hose (404) away from the exhaust fan (404a) is fixedly connected to an air collecting hood (405), a winding roller (406) is rotatably connected to one side of the upper surface of the fixed plate (401), and a lifting cable (407) is wound around the outer wall of the winding roller (406), and an end of the lifting cable (407) away from the winding roller (406) is fixedly connected to the top of the air collecting hood (405).

2. The underground mining roof support device according to claim 1, characterized in that: The front and rear ends of the lower surface of the support plate (1) are fixedly connected to support columns (101), and reinforcing rods (102) are welded between the front and rear adjacent support columns (101).

3. The underground mining roof support device according to claim 1, characterized in that: Positioning holes (202a) are provided at the front and rear ends of the surface of the mounting plate (202), and a positioning rod (201a) is fitted into the internal gap of the positioning hole (202a), and the bottom end of the positioning rod (201a) is welded to the top of the mounting frame (201).

4. The underground mining roof support device according to claim 3, characterized in that: A connecting rod (201b) is fixedly connected between the front and rear adjacent installation frames (201), and both ends of the connecting rod (201b) are fixedly connected to reinforcing ribs (201c), and the vertical arms of the reinforcing ribs (201c) are fixedly connected to the facing surfaces of the installation frames (201).

5. The underground mining roof support device according to claim 1, characterized in that: The surface of the cross beam (3) is movably penetrated by a movable rod (301), and the top and bottom ends of the movable rod (301) are respectively welded with a support plate (302) and a limit plate (303), the upper surface of the support plate (302) is fixedly connected to the lower surface of the support plate (205), and the upper surface of the limit plate (303) is fixedly connected to a return spring (304), and the top end of the return spring (304) is fixedly connected to the bottom of the cross beam (3).

6. The underground mining roof support device according to claim 5, characterized in that: The support plate (205) includes a plurality of plates (205a) and a connecting frame (205b), and the upper surfaces of the abutment plates (302) are respectively fixedly connected to the bottom of the connecting frame (205b), the upper surfaces of the plates (205a) are welded with first threaded rods (205a-1), and the longitudinal arms of the connecting frame (205b) are each provided with a through slot (205b-1) that matches the first threaded rod (205a-1). The connecting frame (205b) is provided with a through-slot (205b-1) and a first fastening nut (205a-2) is provided thereon, and a second threaded rod (205a-3) is welded to the front and rear end surfaces of the plate (205a), and a through-hole (205b-2) matching the second threaded rod (205a-3) is provided on the vertical support arm of the connecting frame (205b), and the second threaded rod (205a-3) is provided with a through-hole (205b-2) and a second fastening nut (205a-4) is provided on the second threaded rod (205a-4).

7. The underground mining roof support device according to claim 1, characterized in that: An air outlet (402a) is provided on an outer wall of one side of the detection box (402), and a plurality of baffles (402b) are fixedly connected to the interior of the detection box (402). A plurality of sensor bodies (402c) are fixedly connected to the bottom of the detection box (402), and a sensor probe (402d) is provided on the top of each sensor body (402c). The top end of the sensor probe (402d) passes through the bottom of the detection box (402) and extends to the inside of the detection box (402).

8. The underground mining roof support device according to claim 1, characterized in that: The front and rear ends of the center position of the upper surface of the fixed plate (401) are fixedly connected to the first mounting seat (406a), and the front and rear ends of the winding roller (406) are rotatably connected to the inside of the first mounting seat (406a). The front end of the center position of the upper surface of the fixed plate (401) is fixedly connected to the driving motor (406c) through the motor frame (406b), and the output shaft of the driving motor (406c) is fixedly connected to the front end of the winding roller (406).

9. The underground mining roof support device according to claim 8, characterized in that: The front and rear ends of one side of the upper surface of the fixed plate (401) are both fixedly connected to the second mounting seats (407a), and the second mounting seats (407a) are rotatably connected to guide rollers (407b).

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